How to select only searched records across different pages in datatable

See more:

C#

jQuery

DataTable

Hello Guys,

I am using a data table to show the grid. There is select all option to select multiple records.
My problem is when I selectAll it will select all records even if searched for particular
Id.

What I have tried:

My Datatable:

oTableCompletedAppt = $('#consignmentnote').dataTable({
            "language": {
                "emptyTable": "-",
                "paginate": {
                    "previous": "<",
                    "next": ">"
                }
            },
            "searching": true,
            "lengthChange": true,
            "info": true,
            "ordering": true
        });

Select All function:

$("#selectAll").on("change", function () {
                debugger;
                if ($('#selectAll').is(":checked")) {
                    oTableCompletedAppt.$("input[type='checkbox']").attr('checked', $(this.checked));
                }
                else {
                    oTableCompletedAppt.$("input[type='checkbox']").attr('checked', false);
                }
            });